A filter element for a blood processing filter, containing a nonwoven fabric, wherein the nonwoven fabric has a carboxyl group equivalent of from 20 to 140 (eq/g) and a surface potential of 0 mV or larger.

A water filter media includes a pathogen-killing ply made of an electrospun high temperature thermoplastic elastomer impregnated with biocides on a structural scrim layer, and a pathogen-catching ply made of pathogen-catching materials. The pathogen-killing ply and the pathogen-catching ply are thermally bonded to each other in the media.

A water filter media includes a pathogen-killing ply made of an electrospun high temperature thermoplastic elastomer impregnated with biocides on a structural scrim layer, and a pathogen-catching ply made of pathogen-catching materials. The pathogen-killing ply and the pathogen-catching ply are thermally bonded to each other in the media.

A heat exchanger for an oxygenator device has multiple hollow fiber membranes that each have a hollow portion through which a heat medium passes, wherein the fibers are wound as a cylinder body. Each of the hollow fiber membranes follows a path between opposing ends of the cylinder body which is tilted with respect to a central axis of the cylinder body and is wound around the central axis of the cylinder body, wherein a tilt angle with respect to the central axis ranges from 22 to smaller than 67, and wherein a constituent material of each of the hollow fiber membranes has a Young's modulus E ranging from 2.6 GPa to 0.07 GPa. During winding, the hollow fiber membranes are stretched according to a stretching rate between 0.5% and 3.0% and then fixed at the ends to maintain the stretching.

A membrane including a polysulfone/polyethylene terephthalate (PSf/PET) support and an active layer on an outer surface of the PSf/PET support. The active layer comprises reacted units of a diacyl chloride compound, a tetra-amine compound, and a nanocomposite including graphitic carbon nitride and polypyrrole. The membrane of the present disclosure is self-cleaning following exposure to radiation and finds application in water decontamination and de-salination.

A crosslinked protein-based separation membrane and application thereof. The separation membrane is formed by attaching a crosslinked protein nanomembrane to a porous membrane, the crosslinked protein nanomembrane is formed by crosslinking a two-dimensional nanomembrane which is formed by phase transition of a protein with a crosslinking agent, the separation membrane contains a dense surface layer and a support layer, the dense surface layer is the crosslinked protein nanomembrane, and the support layer is the porous membrane; the protein is any one of lysozyme, bovine serum albumin, insulin, and ?-lactalbumin; the crosslinked protein-based separation membrane has a good biocompatibility, may serve as a dialysis membrane for blood purification, and has a higher retention ratio for large molecular proteins.

A crosslinked protein-based separation membrane and application thereof. The separation membrane is formed by attaching a crosslinked protein nanomembrane to a porous membrane, the crosslinked protein nanomembrane is formed by crosslinking a two-dimensional nanomembrane which is formed by phase transition of a protein with a crosslinking agent, the separation membrane contains a dense surface layer and a support layer, the dense surface layer is the crosslinked protein nanomembrane, and the support layer is the porous membrane; the protein is any one of lysozyme, bovine serum albumin, insulin, and ?-lactalbumin; the crosslinked protein-based separation membrane has a good biocompatibility, may serve as a dialysis membrane for blood purification, and has a higher retention ratio for large molecular proteins.

A manufacturing method of a meltblown fiber membrane includes the following step. A meltblown film is made to pass between a first pressing roller and a second pressing roller, such that a calendering process is performed on the meltblown film, in which the meltblown film includes a plurality of meltblown fibers, each of the meltblown fibers includes a high-fluidity polyester and a modified polyester, a melt index of the high-fluidity polyester under a temperature of 230? C. ranges from 350 g/10 min to 550 g/10 min, a melt index of the modified polyester under a temperature of 230? C. ranges from 200 g/10 min to 400 g/10 min, and a roller temperature of each of the first pressing roller and the second pressing roller ranges from 100? C. to 155? C.

A manufacturing method of a meltblown fiber membrane includes the following step. A meltblown film is made to pass between a first pressing roller and a second pressing roller, such that a calendering process is performed on the meltblown film, in which the meltblown film includes a plurality of meltblown fibers, each of the meltblown fibers includes a high-fluidity polyester and a modified polyester, a melt index of the high-fluidity polyester under a temperature of 230? C. ranges from 350 g/10 min to 550 g/10 min, a melt index of the modified polyester under a temperature of 230? C. ranges from 200 g/10 min to 400 g/10 min, and a roller temperature of each of the first pressing roller and the second pressing roller ranges from 100? C. to 155? C.

The invention provides mixed matrix membranes (MMMs) for olefin/paraffin separation and methodes of making and using the same. The MMMs comprise a continuous polymer matrix with metal doped zeolite nano-particles. A separation technology based upon the composite membranes is effective for propylene and other olefin separation from olefin/paraffin mixtures, and the separation is more energy-efficient than the conventional cryogenic technique.